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| 1 // Copyright 2009 The Go Authors. All rights reserved. | 1 // Copyright 2009 The Go Authors. All rights reserved. |
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| 2 // Use of this source code is governed by a BSD-style | 2 // Use of this source code is governed by a BSD-style |
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| 3 // license that can be found in the LICENSE file. | 3 // license that can be found in the LICENSE file. |
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| 4 | 4 |
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| 5 #include "386/asm.h" | 5 #include "386/asm.h" |
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| 6 | 6 |
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| 7 TEXT _rt0_386(SB),7,0ドル | 7 TEXT _rt0_386(SB),7,0ドル |
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| 8 // copy arguments forward on an even stack | 8 // copy arguments forward on an even stack |
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| 9 MOVL 0(SP), AX // argc | 9 MOVL 0(SP), AX // argc |
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| 10 LEAL 4(SP), BX // argv | 10 LEAL 4(SP), BX // argv |
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| 11 SUBL 128,ドル SP // plenty of scratch | 11 SUBL 128,ドル SP // plenty of scratch |
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| 12 ANDL $~15, SP | 12 ANDL $~15, SP |
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| 13 MOVL AX, 120(SP) // save argc, argv away | 13 MOVL AX, 120(SP) // save argc, argv away |
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| 14 MOVL BX, 124(SP) | 14 MOVL BX, 124(SP) |
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| 15 | 15 |
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| 16 // if there is an initcgo, call it to let it | 16 // if there is an initcgo, call it to let it |
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| 17 // initialize and to set up GS. if not, | 17 // initialize and to set up GS. if not, |
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| 18 // we set up GS ourselves. | 18 // we set up GS ourselves. |
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| 19 MOVL initcgo(SB), AX | 19 MOVL initcgo(SB), AX |
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| 20 TESTL AX, AX | 20 TESTL AX, AX |
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| 21 JZ 3(PC) | 21 JZ 3(PC) |
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| 22 CALL AX | 22 CALL AX |
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| 23 JMP ok | 23 JMP ok |
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| 24 | 24 |
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| 25 // set up %gs | 25 // set up %gs |
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| 26 CALL ldt0setup(SB) | 26 CALL ldt0setup(SB) |
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| 27 | 27 |
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| 28 // store through it, to make sure it works | 28 // store through it, to make sure it works |
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| 29 CMPL isplan9(SB), 1ドル |
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| 30 JEQ ok |
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| 29 get_tls(BX) | 31 get_tls(BX) |
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| 30 MOVL 0ドルx123, g(BX) | 32 MOVL 0ドルx123, g(BX) |
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| 31 MOVL tls0(SB), AX | 33 MOVL tls0(SB), AX |
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| 32 CMPL AX, 0ドルx123 | 34 CMPL AX, 0ドルx123 |
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| 33 JEQ ok | 35 JEQ ok |
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| 34 MOVL AX, 0 // abort | 36 MOVL AX, 0 // abort |
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| 35 ok: | 37 ok: |
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| 36 // set up m and g "registers" | 38 // set up m and g "registers" |
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| 37 get_tls(BX) | 39 get_tls(BX) |
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| 38 LEAL g0(SB), CX | 40 LEAL g0(SB), CX |
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| (...skipping 368 matching lines...) | | Loading... |
| 407 INT 3ドル | 409 INT 3ドル |
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| 408 CMPL SP, g_stackguard(AX) | 410 CMPL SP, g_stackguard(AX) |
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| 409 JHI 2(PC) | 411 JHI 2(PC) |
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| 410 INT 3ドル | 412 INT 3ドル |
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| 411 RET | 413 RET |
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| 412 | 414 |
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| 413 GLOBL m0(SB), 1024ドル | 415 GLOBL m0(SB), 1024ドル |
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| 414 GLOBL g0(SB), 1024ドル | 416 GLOBL g0(SB), 1024ドル |
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| 415 GLOBL tls0(SB), 32ドル | 417 GLOBL tls0(SB), 32ドル |
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| 416 GLOBL initcgo(SB), 4ドル | 418 GLOBL initcgo(SB), 4ドル |
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| 417 | 419 GLOBL isplan9(SB), 4ドル |
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